* [Class summary](https://roamresearch.com/#/app/programming-with-categories/page/5TmZn1jAd) by David Dalrymple. YouTube [link](https://www.youtube.com/watch?v=K0k1RAxyzao&list=PLhgq-BqyZ7i7MTGhUROZy3BOICnVixETS&index=7&t=0s).

https://www.youtube.com/watch?v=K0k1RAxyzao&list=PLhgq-BqyZ7i7MTGhUROZy3BOICnVixETS&index=7&t=0s

[Next](https://forum.azimuthproject.org/discussion/2450/lecture-5-functors-in-haskell-bartosz-milewski#latest)